Answer: jackson is 12
explanation:
let the age be represented by x
jackson is 2 times older than shelly so
2x is jackson’s age and x is shelly’s age
since the sum of their ages is 18 then:
2x + x = 18
solve:
3x = 18 ➔ divide by 3 on both sides
x = 6
so now we know shelly is 6
jackson is 2 times older than her so:
2(6) = 12
X=-5, X=4 hope this helps
Answer:
The result is 150 + 1.5d
Step-by-step explanation:
We want to translate the wordings into algebraic expression.
Firstly, we increase 120 by d%
d% = d/100
So increasing 120 by d % means;
120 + (d/100 * 120)
= 120 + 1.2d
Then increase this by 25%
= (120 + 1.2d) + 25/100(120 + 1.2d)
= 120 + 1.2d + (120+1.2d)/4
= 120 + 1.2d + 30 + 0.3d
= 120 + 30 + 1.2d + 0.3d
= 150 + 1.5d
Answer:
Option A
Step-by-step explanation:
22+(-32) is the same thing as 22-32.
<h3>Let's see if the given options are equal:</h3>
Option A:
Option A's expression has the same value as the expression given.
Option B:
22+(22)+(-10)
Option B's expression does not have the same value as the expression given.
Option C:
Option C's expression does not have the same value as the expression given.
Option D:
Option D's expression does not have the same value as the expression given.
<h3>The correct answer should be A: 22+(-22)+(-10).</h3>
When written in scientific notation, 3,900 = 3.9 x 10^3
